Superfund / Missouri
Weldon Spring Quarry/Plant/Pits (USDOE/Army)
St. Charles County, St. Charles County, Missouri
This site remains on the final NPL. The engineered cleanup (its "remedy") was physically completed on 08/22/2005, and the site stays listed while monitoring confirms the remedy works.
| EPA ID | MO3210090004 |
| Status | NPL Site |
| HRS score | 58.6 |
| Proposed | 10/15/1984 |
| Listed | 07/22/1987 |
| Construction complete | 08/22/2005 |
| Deleted | - |
| Coordinates | 38.69694, -90.72500 |
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